totally agree with you, twelshrn.
also, i would suggest to try out baby probiotics as well as udo's 3-6-9 oil. my baby developed something similar after his 4 month old vaccines - in our case, a possible immune reaction that came up in the form of eczema patches. after a lot of research, i started giving him some baby probiotics (to support his immune system) as well as massaging him daily with a mix of udo's oil 3-6-9 and a little bit of shea butter. the results were very quick to appear and now, at almost 8 moths, he is eczema free. i am aware of the fact that we were very lucky that he got such a good response to these, but i'm thinking that even if it's not under the same circumstances, the use of probiotics and omega-rich oil could only do some good to your little one.
good luck mama, i hope it will get better soon!